body{
  background:darkgray;

}
.ul1>li a:focus{
  background:#E7E7E7;
}
.jumbotron{
  background:url(../images/img/bg.jpg) no-repeat;
  background-size: 100% 100%;
  height:192px;
  margin-top:50px;
}
.content h3{
 text-overflow: ellipsis;white-space:nowrap;overflow: hidden;

}
.bian{
  border-left:4px solid darkgray;
  padding:0 3px;


}
.zi p{
  color:lightgray;

}
